step by step 3000 第四册 Unit 4及答案

1、精选pptUnit 4 part I A Key words: job offers 工作机会 increase upcoming college graduates大学毕业生 vocabulary renege食言；否认 snap sb.up抢购精选pptKey to Part I A 1. 4% , 30% , hired 2. 25% , 18%, increase. 3. 4. 5% , very good news , younger , cheaper, lay-offs , job prospects 4. Liberal arts , snapped up , a toughe

2、r time , computer science, finance , hot, on the rise.精选pptPart I B Key words: getting jobs boom繁荣 this year different economy经济；节约；理财 Vocabulary: scrounge搜寻；乞讨？ Escalate逐步提高 rescind 解除；撤回 recruit招聘；补充精选pptB. Employment situation People graduating last year getting jobs / six, seven different positi

3、ons Keren Aloyas brother boom / did well Sociology majors graduating this year no job / have job offers rescinded Companies in tech sector slow college recruiting / renege on (Intel, Dell, etc. ) job offers 精选pptPart II Key words: reading math science academic progress学术进步 Vocabulary: glean收集 decima

4、l小数的 fraction分数；部分 stall货摊；停止；拖延 calculus微积分学精选ppt Key to Part II A A Math a. better (add, subtract, multiply, divide) than 30 years ago b. more skilled in basic geometry, using decimals, percentages, and fractions Reading a. scores improved b. scores dropped & stayed flat Science slightly bette

5、r grasp, have stalled精选ppt Leading statement: are doing better than Supporting details: 1. taking tougher courses a. algebra b. calculus, biology and chemistry 2. More homework now 3. Sex difference / difference between boys and girls a. gap disappearing b. In science: (1) 13 and 17 (2) At the age o

6、f 9: no difference 精选ppt 1. A national report card on students academic progress. 2. They may have trouble locating and identifying facts from stories or summarizing and explaining what they read. 3. a. new fourth grade reading scores b. a state by state breakdown of math scores c. the first batch o

7、f science scores 精选pptPart II B vocabulary snob虚价 craftsman工匠 decent正派的 promotion 提升；晋升 humble谦卑的；低下的 reject次品 oblige迫使；强制精选pptKey to B B1, 1. a kind of snob value 2. have a piece of paper 3. obtain a certificate or a diploma first 4. relatively unimportant 5. get a degree 6. a proper education 7. a

8、llow people to become expert, oblige them to follow a set course of instruction B2 Major viewpoints: 1,4,7 Supporting ideas and facts:2,3,5,6精选pptPart III key words college a bolt out of the blue晴天霹雳 stumbled踌躇；蹒跚 top of my class editorial writer社论作者 chance big part vocabulary a bolt of the blue han

9、gout巢穴；故意泄露 intercede调解；调停 consititution宪法精选pptKey to Part III A. 1. college, out of 2. hadnt been 3. hanging out 4. go to college 5. graduation, the road 6. confident, radical 7. happened, out , nowhere, God 8. minds 9. random, part , life精选pptB 1. F 2. T 3. F 4. F 5. F 6. F 7. T 8. T精选pptC in high school, Chester hangout, work in Chester, a stranger he hadnt tak